SmogRank / Countries / China

Most polluted cities in China

1 measured city ranked by PM2.5, last 7 days. Worst: Changchun at 17.4 µg/m³, #197 in the world.

#City µg/m³
1Changchun low-cost sensorsJilin
17.4
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

Estimated: cities without a monitor

China cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Shanghai estimated≈ 30 µg/m³Moderate
Chongqing estimated≈ 36 µg/m³Unhealthy for sensitive groups
Chengdu estimated≈ 49 µg/m³Unhealthy for sensitive groups
Beijing estimated≈ 67 µg/m³Unhealthy
Guangzhou estimated≈ 21 µg/m³Moderate
Shenzhen estimated≈ 12 µg/m³Moderate
Tianjin estimated≈ 49 µg/m³Unhealthy for sensitive groups
Wuhan estimated≈ 42 µg/m³Unhealthy for sensitive groups
Xi’an estimated≈ 83 µg/m³Unhealthy
Hangzhou estimated≈ 45 µg/m³Unhealthy for sensitive groups
Harbin estimated≈ 20 µg/m³Moderate
Dongguan estimated≈ 17 µg/m³Moderate
Hefei estimated≈ 24 µg/m³Moderate
Weifang estimated≈ 33 µg/m³Moderate
Nanjing estimated≈ 31 µg/m³Moderate
Shenyang estimated≈ 27 µg/m³Moderate
Foshan estimated≈ 21 µg/m³Moderate
Jinan estimated≈ 53 µg/m³Unhealthy for sensitive groups
Dalian estimated≈ 24 µg/m³Moderate
Wuzhong estimated≈ 19 µg/m³Moderate
Qingdao estimated≈ 18 µg/m³Moderate
Yantai estimated≈ 18 µg/m³Moderate
Suzhou estimated≈ 29 µg/m³Moderate
Zhengzhou estimated≈ 58 µg/m³Unhealthy
Nanning estimated≈ 10 µg/m³Moderate
Kunming estimated≈ 10 µg/m³Moderate
Shijiazhuang estimated≈ 46 µg/m³Unhealthy for sensitive groups
Pudong estimated≈ 30 µg/m³Moderate
Taiyuan estimated≈ 21 µg/m³Moderate
Zibo estimated≈ 41 µg/m³Unhealthy for sensitive groups
Xiamen estimated≈ 19 µg/m³Moderate
Yangzhou estimated≈ 21 µg/m³Moderate
Huai'an estimated≈ 21 µg/m³Moderate
Guiyang estimated≈ 11 µg/m³Moderate
Bao'an estimated≈ 12 µg/m³Moderate
Wuxi estimated≈ 31 µg/m³Moderate
Lanzhou estimated≈ 23 µg/m³Moderate
Fuzhou estimated≈ 21 µg/m³Moderate
Ürümqi estimated≈ 38 µg/m³Unhealthy for sensitive groups
Zaozhuang estimated≈ 35 µg/m³Moderate

Updated 2026-10-01 06:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.